CAPTION SHIFT CORRECTION DEVICE, REPRODUCTION DEVICE, AND BROADCAST DEVICE

摘要

PROBLEM TO BE SOLVED: To sequentially create a broadcast content which corrects a time shift between a video or a voice and a caption with a high degree of accuracy while receiving the broadcast content.

SOLUTION: A voice recognition unit 21 recognizes the voice of a broadcasting program and generates a recognition result phoneme sequence corresponding to the voice. A caption conversion phoneme sequence generation unit 22 generates the phoneme sequence corresponding to each caption in the video of the broadcasting program and generates a caption conversion phoneme sequence by connecting these phoneme sequences. A phoneme sequence collation unit 23 associates the caption with the voice by using information of the voice and the caption in the received broadcast content at a constant time interval, predicts a start time and an end time after correction of the time shift with respect to the caption based on the result, and estimates a range of the time shift of the voice and the caption.

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